JAVA 的MD5加密算法源代码-Java基础-Java-编程开发

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选择自 jackwin 的 Blog

import java.security.*;
import java.security.spec.*;
class MD5_Test{
public final static String MD5(String s){
char hexDigits[] = {
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd',
'e', 'f'};
try {
byte[] strTemp = s.getBytes();
MessageDigest mdTemp = MessageDigest.getInstance("MD5");
mdTemp.update(strTemp);
byte[] md = mdTemp.digest();
int j = md.length;
char str[] = new char[j * 2];
int k = 0;
for (int i = 0; i < j; i ) {
byte byte0 = md[i];
str[k ] = hexDigits[byte0 >>>4 & 0xf];
str[k ] = hexDigits[byte0 & 0xf];
}
return new String(str);
}
catch (Exception e){
return null;
}
}
public static void main(String[] args){
//MD5_Test aa = new MD5_Test();
System.out.print(MD5_Test.MD5("XX"));
}

jackwin的Blog:http://blog.csdn.net/jackwin/